Embark on a journey into the depths of our planet with the Earth’s Interior Worksheet Answers. This comprehensive guide delves into the intricate layers, physical properties, and geological processes that shape our world, providing a profound understanding of the Earth’s inner workings.
From the crust’s enigmatic surface to the enigmatic core’s fiery embrace, we explore the composition, characteristics, and dynamics of each layer. Discover how temperature, pressure, and density vary with depth, and witness the geological forces that sculpt the Earth’s surface and interior.
The Earth’s Interior: Layers and Composition
The Earth’s interior is a complex and dynamic system consisting of several distinct layers. Each layer has unique characteristics, including composition, thickness, and temperature.
The Earth’s interior can be divided into three main layers:
- Crust:The outermost layer, composed primarily of solid rock and minerals. It is the thinnest layer, with an average thickness of about 35 kilometers (22 miles).
- Mantle:The middle layer, composed of solid rock that is hotter and denser than the crust. It is approximately 2,900 kilometers (1,800 miles) thick.
- Core:The innermost layer, composed of molten iron and nickel. It is the hottest and densest layer, with an average temperature of about 5,200 degrees Celsius (9,400 degrees Fahrenheit).
The following table summarizes the key information about each layer:
| Layer | Thickness (km) | Density (g/cm³) | Temperature (°C) |
|---|---|---|---|
| Crust | 35 | 2.7 | 100-1,000 |
| Mantle | 2,900 | 4.5 | 1,000-3,700 |
| Core | 6,371 | 13.0 | 5,200 |
Key Questions Answered: The Earth’s Interior Worksheet Answers
What are the main layers of the Earth’s interior?
The Earth’s interior consists of three main layers: the crust, mantle, and core.
How does temperature vary with depth in the Earth’s interior?
Temperature generally increases with depth, reaching extreme values at the core.
What is the role of plate tectonics in shaping the Earth’s surface?
Plate tectonics involves the movement of Earth’s lithosphere, resulting in the formation of mountains, volcanoes, and other surface features.
